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74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_FrameUniformityData_h_
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#define mozilla_layers_FrameUniformityData_h_
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#include "ipc/IPCMessageUtils.h"
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#include "js/TypeDecls.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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namespace layers {
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class Layer;
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class FrameUniformityData {
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friend struct IPC::ParamTraits<FrameUniformityData>;
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public:
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bool ToJS(JS::MutableHandleValue aOutValue, JSContext* aContext);
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// Contains the calculated frame uniformities
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std::map<uintptr_t,float> mUniformities;
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};
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struct LayerTransforms {
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LayerTransforms() {}
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gfx::Point GetAverage();
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gfx::Point GetStdDev();
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// 60 fps * 5 seconds worth of data
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nsAutoTArray<gfx::Point, 300> mTransforms;
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};
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class LayerTransformRecorder {
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public:
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LayerTransformRecorder() {}
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~LayerTransformRecorder();
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void RecordTransform(Layer* aLayer, const gfx::Point& aTransform);
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void Reset();
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void EndTest(FrameUniformityData* aOutData);
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private:
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float CalculateFrameUniformity(uintptr_t aLayer);
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LayerTransforms* GetLayerTransforms(uintptr_t aLayer);
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std::map<uintptr_t,LayerTransforms*> mFrameTransforms;
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};
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} // namespace layers
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} // namespace mozilla
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namespace IPC {
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template<>
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struct ParamTraits<mozilla::layers::FrameUniformityData>
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{
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typedef mozilla::layers::FrameUniformityData paramType;
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static void Write(Message* aMsg, const paramType& aParam)
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{
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WriteParam(aMsg, aParam.mUniformities);
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}
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static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
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{
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return ParamTraitsStd<std::map<uintptr_t,float>>::Read(aMsg, aIter, &aResult->mUniformities);
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}
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};
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} // namespace IPC
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#endif // mozilla_layers_FrameUniformityData_h_
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